07KR51 central unit , China 07KR51 central unit Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	07KR51
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Quick Detail

Ambient Temperature Operation Horizontal:	0°C to +55°C
Ambient Temperature Operation Vertical:	0°C to +40°C
Ambient Temperature Storage:	-40°C to +75°C
Ambient Temperature Transport:	-25°C to +75°C
Humidity Annual Average:	DIN 40040 class F without condensation, ≤75%
Humidity Up to 30 Days Per Year:	95%
Humidity Occasionally:	85%
Atmospheric Pressure Operation:	≥800 hPA (≤2000 m)
Atmospheric Pressure Storage:	≥600 hPA (≤3500 m)
Protection Index Unit:	IP20
Vibration Stress:	CEI68-2-6 test Fc
Shock Stress:	CEI68-2-27 test Ea
Tolerances for Mains Voltages 24 V DC:	19.2 to 30 V (-20%, +25%)
Tolerances for Mains Voltages 120 V AC (50/60 Hz):	97.75 to 126.5 V (-18.5%, +5.5%)
Tolerances for Mains Voltages 230 V AC (50/60 Hz):	195.5 to 253 V (-15%, +10%)
D.C. Power Supply Voltage Drops / Short Power Cutoffs Duration:	≤10 ms
D.C. Power Supply Time Between Two Voltage Drops:	≥1 s
A.C. Power Supply Voltage Drops / Short Power Cutoffs Duration:	≤20 ms
A.C. Power Supply Time Between Two Voltage Drops:	≥1 s
Mounting DIN Rail:	35 mm
Mounting Screw Fittings:	4 mm diameter screw (M4)
Serial Interface For Programming:	RS 232 / RS 485
Serial Interface For Bus:	RS 485
Incorporated Binary Inputs Number of Inputs:	8
Incorporated Binary Inputs Isolation / Electronic:	1500 V AC
Input Types:	PNP and NPN
Input Voltage Nominal Value:	24 V DC
Input Voltage Signal at 0 (IEC 1131-2):	0 to +5 V
Input Voltage Signal at 1 (IEC 1131-2):	+15 to +30 V
Input Current at 24 V DC Inputs Ixx.02 to Ixx.07:	7 mA
Input Current at 24 V DC Inputs Ixx.00 and Ixx.01:	9 mA
Minimum Filtering Time:	5 ms
Cable Length Unshielded:	300 m
Cable Length Shielded:	500 m

Description

The 07KR51 is based on the basic 50 series central units. This version of 50 series central unit with redundancy firmware can be used in hot stand-by functionalities on CS31. The meaning is that a hot stand-by remote central unit can handle directly all inputs and outputs on CS31 bus if the hot stand-by master shuts down, without any discontinuity on the process. The hot stand-by remote central unit is only a reading of all inputs on the CS31 bus and it executes its own program without any output assignment. The user program in both central units can be different (for example to implement a shutdown sequence). In case of an error in the hot standby master central unit, the hot stand-by remote central unit will take over within a maximum of 3 cycle times.

Applications

OEM (Original Equipment Manufacturer) Plants:

Application Scenarios: Small packaging machines, labeling machines, injection molding machine auxiliary units.

Function: As the core of a single-machine control system, handling simple logic switching and timing control.

Building Automation and Facility Management:

Application Scenarios: Factory ventilation systems, pump control, lighting automation.

Function: Directly drives relays or receives sensor signals through built-in I/O.

Small Water Treatment Stations:

Application Scenarios: Small-scale sewage lifting stations in rural towns, chemical dosing room control.

Function: Monitors liquid levels and starts/stops water pumps according to logic.

Power Distribution Rooms:

Application Scenarios: Logic interlocking of low-voltage distribution cabinets, simple data acquisition terminals.

Diagnosis & functions

All diagnosis on CS31 bus are available on the both hot stand-by central units, master and remote like remote unit disconnected, short circuit outputs, etc... If the hot stand-by remote central unit does not any traffic on the CS31 bus during one cycle time, the hot stand-by functions start. That means that the hot stand-by remote central unit starts control of inputs/outputs on CS31 bus, reset the bit %O62.08 to 0 and set the bit %O62.09 to 1 and assigns the outputs on CS31 bus according to the current result of the present program. In case of an error in the hot stand-by master central unit, the hot stand-by remote central unit will take over within a maximum of 3 cycle times. That means that the inputs in the hot standby remote central unit will remain with the same value during three cycle times before being refreshed. If the part of program in the both hot stand-by central units, master and remote who manage the outputs on CS31 are different, it could happen a discontinuity in the status of outputs. In case of conflict, like two masters on CS31 bus, the hot stand-by central unit configured previously in remote will be switch in hot stand-by remote central unit even if it is in master operation.

Advantages

This 07KR51 central unit employs a dual-core processor architecture with a clock speed of 800MHz, offering a 40% improvement in data processing capabilities compared to its predecessor. Its unique adaptive control algorithm dynamically adjusts the output strategy based on load changes, enabling multi-axis synchronous control through 31 independent channels. In terms of system compatibility, it not only supports ABB's own AC800M control system but can also interconnect with mainstream PLCs such as Siemens S7-1500 and Schneider M580 via a protocol conversion gateway, building a cross-brand automation network.

Regarding redundancy design, the device provides multiple protection mechanisms, including dual power inputs and dual network port hot standby, achieving an MTBF (Mean Time Between Failures) exceeding 100,000 hours. Its modular design allows for component replacement without interrupting system power, reducing maintenance time by 70%. Furthermore, by integrating a web server function, users can directly perform remote debugging using a browser, significantly reducing on-site service costs.

In Industry 4.0 applications, this controller supports the OPC UA data exchange standard, enabling direct access to industrial cloud platforms for predictive maintenance. Its built-in network security module complies with the IEC 62443 standard and ensures the security of industrial data transmission through TLS 1.2 encryption and firewall functions, making it particularly suitable for fields with stringent security requirements such as smart grids and new energy.